Home / 129,559.64-194,339.44-74,116.76

Finding the Fourth Proportional to 129,559.64, 194,339.44 and 74,116.76

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Solution

The fourth proportional to 129,559.64, 194,339.44 and 74,116.76 is: 111,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,559.64 : 194,339.44 = 74,116.76 : x
  2. Step 2: Convert to fraction form
    129,559.64/194,339.44 = 74,116.76/x
  3. Step 3: Cross multiply
    129,559.64x = 194,339.44 × 74,116.76
  4. Step 4: Simplify right side
    129,559.64x = 14,403,809,633.01
  5. Step 5: Solve for x
    x = 14,403,809,633.01/129,559.64
  6. Step 6: Final answer
    x = 111,175.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.